#九九乘法表
for i in range(1,10):
    for j in range(1,i+1):
        print(i,'*',j,'=',i*j,end='\t')
    print()


'''输出一个三行四列的矩形'''
for i in range(1,4):
    for j in range(1,5):
        print('*',end='\t')
    print()


